3740 ÷ 81 
The aim is to understand the frequency of 81 in 3740.

Moving on to step 1:
When dividing 3 by 81, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 81

Moving on to step 2:
37 divided by 81 is 0 with a remainder of 37.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 37 to get 37.
Bring next digit (4) of the dividend behind the 37 and repeat the process: 374 / 81

Let's proceed to step 3:
The number 81 fits into 374 4 times, leaving a remainder of 50.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 324 away from 374, we end up with 50.
Take the next digit (0) from the dividend and append it to 50, then repeat: 500 / 81

Let's proceed to step 4:
When dividing 500 by 81, we get 6 with a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 46.0
Deduct 486 from 500 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 5:
If we divide 140 by 81, we get 1 and a remainder of 59.
Write down 1 as next digit of the result. 
Result so far: 46.1
If we take 81 away from 140, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 6:
81 can be fit into 590 7 times, resulting in a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 46.17
Subtracting 567 from 590 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 7:
81 goes into 230 2 times with a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 46.172
If we take 162 away from 230, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 8:
81 goes into 680 8 times with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 46.1728
If we subtract 648 from 680, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 9:
If we divide 320 by 81, we get 3 and a remainder of 77.
The number 3 becomes the next digit in our result. 
Result so far: 46.17283
Subtracting 243 from 320 leaves us with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Step 10:
81 can be fit into 770 9 times, resulting in a remainder of 41.
The number 9 becomes the next digit in our result. 
Result so far: 46.172839
The remainder is 41 after subtracting 729 from 770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 11:
410 divided by 81 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 46.1728395
If we subtract 405 from 410, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 12:
50 divided by 81 is 0 with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 46.1728395
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 46.1728395 with a remainder of 5e-08.